Make excel columns non editable using c#

Question

I have an excel sheet. Want to make first 3 columns editable and remaining all columns non editable and blank (without grid lines) using c#. Please help...

Dorothy Tincher · Answer

Hi here is another solution that you can try: // Load excel file. var file = ExcelFile .Load( input.xlsx ); var sheet = file.Worksheets.ActiveWorksheet; // Set worksheet without grid lines. sheet.ViewOptions.ShowGridLines = false ; // Set worksheet with protection. sheet.Protected = true ; // Itarate through the required cells set their borders and unlock them. var range = sheet.Cells.GetSubrange( A1  C + sheet.Rows.Count); foreach ( var cell in range) { cell.SetBorders( MultipleBorders .Outside Color.Black LineStyle .Thin); cell.Style.Locked = false ; } // Save excel file. file.Save( output.xlsx ); Code uses this .NET Excel dll I find it to be a good alternative to an Excel Interop .

Sanu · Answer

Thank you Sunny will try this..

Sunny Sharma · Answer

Hi sanu You need to Unlock the whole sheet or the part which you want the user be able to edit and Lock the cells of your purpose. Protect the sheet when you're done and that's all it takes. try this way: ----------------------------------------------------------- Missing mv = Missing.Value; Microsoft.Office.Interop.Excel.Application excelApp = new Microsoft.Office.Interop.Excel.Application(); Microsoft.Office.Interop.Excel.Workbook wkb = excelApp.Workbooks.Add(mv); Microsoft.Office.Interop.Excel.Worksheet wks =(Microsoft.Office.Interop.Excel.Worksheet) wkb.Sheets[1]; wks.Columns.Locked = false; ((Microsoft.Office.Interop.Excel.Range)wks.get_Range((object)wks.Cells[1 1](object) wks.Cells[1 3])).EntireColumn.Locked = true; wks.EnableSelection = Microsoft.Office.Interop.Excel.XlEnableSelection.xlUnlockedCells; wks.Protect(mv mv mv mv mv mv mv mv mv mv mv mv mv mv mv mv); wks.SaveAs(D:\filename.xls Microsoft.Office.Interop.Excel.XlFileFormat.xlExcel8 mv mv mv mv mv mv mv mv); wks = null; wkb = null; excelApp.Quit(); ---------------------------------------------------------- Happy Coding :) Cheers!!